Toothbrush



June w, 1924.. RAMA-95 L. I. FINCKE TOOTHBRUSH Filed April 18 1923 39INVENTOR. ijfz/zoh BY M AT ORN Patented June 10, 1924.

PATENT LED 1. FINGKF, 0F GHTGA'Gl-Q, TLTJINQIS.

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Application filed April it, ieaa. atria in. cream.

To all whom it may concern:

Be itknown that I, LE0 I. FINCKE, a citizen of the United States,residing at Chicago, in the county of Cook and State a of Illinois, haveinvented certain new and useful Improvements in Tooth Brushes, of whichthe following is a specification.

This invention relates to tooth brushes, and has for its object toprovide a brush of 19 such class, with means as hereinafter set forth,constituting a combined clamping and handle element, a holder elementand a removable brush head capable of being detachably secured withinsaid holder element W so that the-brush head can be conveniently removedwhen occasion so requires for the purpose of thoroughly cleansing itthroughout, and whereby when the brush head hecomes damaged or worn anew one can be 29 substituted without discarding the said element, undersuch conditions setting up provision so that the holder and handleelements can be employed indefinitely for supporting brush heads.

A further object of the invention is to provide a tooth brush, in amanner as hereinafter set forth, comprising a removable brush headadapted to be detachably clamped in position and further capable of 30being reversed when occasion so requires.

Further objects of the invention are to provide a tooth brush which issimplein its construction and arrangement, strong, durable, compact,thoroughly efficient in its use,

35 conveniently assembled, and comparatively inexpensive to manufacture.

With the foregoing and other objects in view, the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically described and illustratedin theaccompanying drawings, wherein is shown an embodiment of tlIIGIHVGIItlOH, but it is to be understood that changes, variations andmodifications can be resorted to which come within the scope of theclaims hereunto a pended.

lnthe drawings wherein l1 e reference characters denote correspondingparts throughout the several views Figure 1 is a side elevation, partlyin section, of a tooth brush, in accordance with this invention.

Figure 2 1s a longitudinal sectional view, broken away.

Figure 3 is a to plan view, broken away.

F1gure 4 is a ragmentary view, in side elevation, of one end of theclamping sect1on forming a part of the combined clampin and handleelement.

igure 5 is an end view of the clamping m member.

Figure 6 is a top plan view, broken away, of the clamping member.

Figure 7 is a side elevation of the brush head. Figure 8 is a sideelevation of a modified form of brush head.

Figure 9 is a cross sectional view of the form of brush head shown inFigure 8, and further illustrating the brush head. mounted W in theholder element.

A tooth brush in accordance with this invention includes a holderelement, a combined clamping and handle element and a brush head, whichis detachably clamped M within the holder by the combined clamping andhandle element.

Referring to Figures 1 to 7 of the drawings, the combined clamping andhandle element thereof comprises a stem 28, which is an cylindrical incross section and has one end terminal portion, as indicated at 29,thread ed, and threadedly engaging with the said end terminal portion 29is a locking head formed of a body portion 30, provided with at areduced tubular extension 31 at one end which forms an annular shoulder32. The. body portion 30 is provided with a socket 33, which opens atthe free end of the extension 31 and secured within the socket 33, to

is a sleeve 34:, provided with interior threads which engage with thethreaded end terminal 29, of the stem 28.

The preferred form, further includes a holder element in the form of areceptacle to for receiving the brush head and which comprises a bottom35, forward end wall 36, and a pair of side walls 37, 38 The brushreceptacle is open at its rear end and the said rear end is squared. Thebottom 35, at lot the rear thereof, is formed with a socket 39, in whichis secured the end terminal portion 40, of'the stem 28. its shown, theend ter- 'minal portion 40 is provided with threads which engage withthe wall of the socket 39. tot The wall of the socket 39 is threaded.lit is obvious however, that the end terminal portion 4:0 can be securedin the socket 39, in

any other suitable manner. The top of the end wall 36, and at the top ofthe side walls 37, 38, each of said walls is formed with an inwardlyextending flange and the flange at the top of the end wall 36is'indicated at 41, and the flanges at the top of the side vwalls 37,38, are indicated at 42. The forward end of the brush receptacle isrounded, as indicated at 43, in Figure 3. The brush receptacle is notonly open at its rear end, but also at, its top.

The combined clamping andhandle element further includes a clampingsection consisting of a tube or sleeve 44, having 1ts bore of twodifferent diameters, as indicated at 45, 46. The portion of smallerdiameter, -as indicated at 45, is of greater length than the portion ofgreater diameter which is indicated at 46, and that portion of smallerdiameter is mounted on the stem 28, and the portion of greater diameteris mounted on the extension 31. The providing of the tube 44 with a boreof two different diameters,

' forms a shoulder 47, against which abuts the extension 41 of thelocking head, as shown in Figure 7. 'That portion of greater diameter ofthe bore, which is indicated at inner ends of the flanges 42, as clearlyshown 46, is arranged at one end of the tube 44, and

the other end of the tube 44 has formed integral therewith a flaredenlargement 48, provided with a flat face 49, having projectingtherefrom a protuberance 50, which is under-cut, as at 51. Theprotuberance is segment-shaped in plan and is of a widthto extend intothe brush receptacle between the in Figure 3.

The brush head comprises a base 52, havin secured therewith a series oftufts of bristles 53. The base 52 is rounded at each end, as at 54, 55,and it comprises an upper and a lower portion and with the lower portionof greater width and greater, length than the upper portion therebyproviding a continuous peripheral shoulder 56, which when the brush headis mounted in the brush receptacle, is not only overlapped by theflanges 41 and 42, but also overlapped by the head can then be shiftedfrom the brush receptacle through the rear end thereof.

Referring to Figure 8, which illustrates a modified form of brush head,it consists of a base 57, having secured therewith a series of tufts ofbristles 58. The base 57 is progrooves 59 and couple the brush head tothe brush receptacle. The base 57 is rounded at each end and whenmounted in the brush receptacle, the rear end 50 of the grooves 59 isadapted to receive the protuberance 50, that is to say, the upperro'ectin portion of the protuberance 50. T e ase 5 of the form of brushhead shown in Figure 14 is of greater height than the base employed inconnection with the other forms of rush heads shown.

-The form of brush head shown in Figure 8 is reversible.

The preferred embodiment of a tooth brush in accordance with thisinvention, is as described and illustrated, but it is obvious thatchanges in the details of construction can be had which will fall withinthe light of the invention as claimed.

What I claim is 1. A tooth brush comprising a rectangular receptacleopen at its top and rear and having an enlargement depending from itsbottom, saidrece tacle formed with an inwardly extending flange on theinner face of the sides and front end thereof, a removable brush headmounted in the receptacle and overlapped by said flanges whereby thebrush head is detachably connected with the receptacle, a substantiallyelongated stem secured to and projecting rearwardly from saidenlargement and providing t e body portion of a handle, a clampingelement shiftable lengthwise of and inclosing said stemand constitutingthe hand gripping ortion of the handle, said-element mclu ing means forclosing the rear open end of the receptacle, said means when in closureposition being flush with the sides of the receptacle, and a shoulderedelement mounted on the stem and engaging the clamping element formaintaining said means in abutting engagement with the rear end of thereceptacle and brush head to secure the latter within the receptacle,said means overlapping the rear en of the brush head and extending intothe receptacle.

2. A tooth brush comprisin a rectan lar receptacle open at its to am?rear an further having an inward y extendin flange formed on the innerface of its sides and front, a removable brush head detachabl-y'connected with the receptacle by said flanges, a substantially elon atedstem secured to and projecting rearwar and constituting the body portionof a handle, a sleeve mounted on and shiftable 1y from the receptaclevlengthwise of said stem and constituting the tacle, and means carried bythe stem for hand ipping portion of the handle, said maintaining saidenlarged end in abutting sleeve avingan enlarged forward endabutengagement with respect to said receptacle 10 ting against the rearend of each side of the and brush head.

5 receptacle and further havingl a forwardly In testimony whereof, Iaflix my signature directed portion overlapping t e rear end of hereto.the brush head 'for securing it in the recep- LEO I. FINCKE.

